I had a friend who bought D2 at launch and didn't come back until Shadowkeep (not even Forsaken). He played it with a few of his buddies for about a month and... they all just stopped. They haven't come back to this game ever since. They mainly did some raids and quests and tried out Gambit, but that was about it. As for me, I tried coming back to test out the waters for Shadowkeep, but I waited to see if a more representative population of the community thought the DLC was good before buying it. Needless to say, I never bought it. I tried coming back for whatever else there was, but nothing just seemed appealing, and Bungie's garbage season model just made it even more discouraging to grind for weeks on end. I like to be able to play when I want to, not feel like I'm forced to play due to the threats of limited-time content.